一、驗電器是檢驗什么的儀器

驗電(dian)(dian)器(qi)(qi)是一種(zhong)檢測(ce)物(wu)(wu)(wu)體(ti)是否帶(dai)(dai)(dai)電(dian)(dian)以(yi)及粗略估(gu)計帶(dai)(dai)(dai)電(dian)(dian)量(liang)大小的(de)(de)(de)儀器(qi)(qi)，當被(bei)檢驗物(wu)(wu)(wu)體(ti)接觸驗電(dian)(dian)器(qi)(qi)頂端的(de)(de)(de)導(dao)體(ti)時，自(zi)身所(suo)帶(dai)(dai)(dai)的(de)(de)(de)電(dian)(dian)荷(he)(he)會傳到玻(bo)璃鐘罩(zhao)內的(de)(de)(de)箔(bo)(bo)片上。由于(yu)同(tong)種(zhong)電(dian)(dian)荷(he)(he)相互排斥(chi)，箔(bo)(bo)片將自(zi)動(dong)分開，張(zhang)成一定角度(du)。根據兩箔(bo)(bo)片張(zhang)成角度(du)的(de)(de)(de)大小可(ke)估(gu)計物(wu)(wu)(wu)體(ti)帶(dai)(dai)(dai)電(dian)(dian)量(liang)的(de)(de)(de)大小。其實這是箔(bo)(bo)片所(suo)受電(dian)(dian)場(chang)力包括箔(bo)(bo)片上同(tong)名的(de)(de)(de)電(dian)(dian)荷(he)(he)的(de)(de)(de)斥(chi)力和(he)器(qi)(qi)皿(min)內壁異名電(dian)(dian)荷(he)(he)的(de)(de)(de)吸引力。如果將玻(bo)璃瓶改為使用金(jin)屬盒以(yi)便屏蔽(bi)靜(jing)電(dian)(dian)、金(jin)屬棒和(he)器(qi)(qi)皿(min)引出導(dao)線以(yi)便測(ce)量(liang)兩點間電(dian)(dian)勢差、增加刻(ke)度(du)以(yi)便將結果量(liang)化(hua)，那(nei)么驗電(dian)(dian)器(qi)(qi)可(ke)以(yi)改造為更精確的(de)(de)(de)靜(jing)電(dian)(dian)計。

二、驗電器是基本安全用具嗎

驗(yan)電(dian)器(qi)既可以作為(wei)基本安全用(yong)(yong)具使用(yong)(yong)，也可以作為(wei)輔(fu)助安全用(yong)(yong)具使用(yong)(yong)。

驗電(dian)(dian)器(qi)在電(dian)(dian)氣安全(quan)檢測中(zhong)具(ju)有非常重要(yao)的作(zuo)用，它(ta)可以幫(bang)助工(gong)人(ren)識別(bie)設備(bei)是否帶電(dian)(dian)或者帶有電(dian)(dian)壓，為電(dian)(dian)氣安全(quan)提(ti)供了保障。同時，在工(gong)業(ye)領域中(zhong)，驗電(dian)(dian)器(qi)也是一(yi)種重要(yao)的安全(quan)用具(ju)，它(ta)可以作(zuo)為基本安全(quan)用具(ju)使(shi)用，幫(bang)助工(gong)人(ren)避(bi)免因電(dian)(dian)氣問題引發的事故(gu)。在一(yi)些危(wei)險系數較高(gao)的情況下，也可以作(zuo)為輔(fu)助安全(quan)用具(ju)使(shi)用。

三、驗電器是感應起電還是接觸起電

驗電器(qi)是(shi)通過接觸起電的(de)方式工作的(de)。

驗電(dian)(dian)器(qi)(qi)(qi)是(shi)一(yi)(yi)種(zhong)(zhong)(zhong)用于(yu)檢(jian)(jian)測物體是(shi)否帶電(dian)(dian)以及(ji)粗略估計帶電(dian)(dian)量大(da)(da)小(xiao)的(de)儀器(qi)(qi)(qi)。其工作原(yuan)理基(ji)于(yu)同(tong)種(zhong)(zhong)(zhong)電(dian)(dian)荷(he)相(xiang)互(hu)排斥(chi)的(de)原(yuan)理。當被檢(jian)(jian)驗物體接(jie)觸驗電(dian)(dian)器(qi)(qi)(qi)頂(ding)端的(de)導(dao)體時，自身(shen)所帶的(de)電(dian)(dian)荷(he)會傳到(dao)玻璃鐘罩(zhao)內的(de)箔(bo)片上(shang)。由于(yu)同(tong)種(zhong)(zhong)(zhong)電(dian)(dian)荷(he)相(xiang)互(hu)排斥(chi)，箔(bo)片將自動分開，張(zhang)成一(yi)(yi)定(ding)角度。根據兩(liang)箔(bo)片張(zhang)成角度的(de)大(da)(da)小(xiao)，可以估計物體帶電(dian)(dian)量的(de)大(da)(da)小(xiao)。這種(zhong)(zhong)(zhong)通過物體與驗電(dian)(dian)器(qi)(qi)(qi)的(de)金屬球接(jie)觸，導(dao)致電(dian)(dian)荷(he)傳到(dao)驗電(dian)(dian)器(qi)(qi)(qi)上(shang)的(de)鋁箔(bo)上(shang)，進而根據同(tong)種(zhong)(zhong)(zhong)電(dian)(dian)荷(he)相(xiang)斥(chi)的(de)原(yuan)理來判斷(duan)物體是(shi)否帶電(dian)(dian)的(de)過程，屬于(yu)接(jie)觸起(qi)電(dian)(dian)。

雖然(ran)驗電(dian)(dian)器(qi)的工作原理涉及到(dao)接觸(chu)起電(dian)(dian)，但也(ye)可以通(tong)(tong)過(guo)(guo)改造(zao)，如使用(yong)金屬盒以便屏蔽靜電(dian)(dian)、金屬棒和器(qi)皿引出導線以便測(ce)量兩點間電(dian)(dian)勢差、增(zeng)加(jia)刻度以便將結果量化，從而(er)使其成為更(geng)精確的靜電(dian)(dian)計。這(zhe)種改造(zao)并不(bu)改變驗電(dian)(dian)器(qi)基(ji)本(ben)的工作原理，即(ji)通(tong)(tong)過(guo)(guo)接觸(chu)帶電(dian)(dian)物(wu)體來(lai)檢測(ce)和測(ce)量電(dian)(dian)荷。